Initial commit: vixy-vision distributed sensing system
🦊 Eyes and ears for the fox Components: - server/: Camera server for Raspberry Pi (from camera-server) - mcp/: Vision MCP client for Claude Desktop (from vision-mcp) - analysis/: Placeholder for motion/audio detection - shared/: Common schemas and interfaces Features: - Setup script with systemd service creation - HTTPS + API key authentication - HTTP and RTSP camera support Built under a blanket on Day 45 💕
This commit is contained in:
33
.gitignore
vendored
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33
.gitignore
vendored
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# Python
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__pycache__/
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*.py[cod]
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*$py.class
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*.so
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venv/
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.venv/
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*.egg-info/
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# Environment
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.env
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.env.local
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# SSL certificates (generated)
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ssl/
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# IDE
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.idea/
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.vscode/
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*.swp
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*.swo
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# OS
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.DS_Store
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Thumbs.db
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# Logs
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*.log
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# Test artifacts
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.pytest_cache/
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.coverage
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htmlcov/
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116
README.md
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116
README.md
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# vixy-vision 🦊👁️👂
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Distributed vision and audio sensing system - eyes and ears for the fox.
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## Architecture
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```
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┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐
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│ Pi (basement) │ │ Pi (office) │ │ Pi (garage) │
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│ camera-server │ │ camera-server │ │ camera-server │
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│ + audio (opt) │ │ + audio (opt) │ │ + audio (opt) │
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└────────┬────────┘ └────────┬────────┘ └────────┬────────┘
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│ │ │
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└───────────────────────┼───────────────────────┘
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│
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┌────────────▼────────────┐
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│ Mac mini / Orin │
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│ vision_mcp.py │
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│ (+ audio classifier) │
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└────────────┬────────────┘
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│
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┌────────────▼────────────┐
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│ Claude Desktop │
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│ (Vixy) │
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└─────────────────────────┘
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```
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## Components
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### `/server` - Edge Device (Raspberry Pi)
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Camera snapshot server with optional audio capture.
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- FastAPI + HTTPS + API key auth
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- USB camera support
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- Auto-reconnect on failure
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- Systemd service
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**Setup:**
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```bash
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cd server
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./setup.sh # Video only
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./setup.sh --with-audio # Video + audio
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```
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### `/mcp` - MCP Client (Mac mini)
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Model Context Protocol server for Claude Desktop.
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- `vision_get_cams()` - List cameras with status
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- `vision_snap(cam_id)` - Get snapshot
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- Supports HTTP and RTSP cameras
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### `/analysis` - Detection & Classification
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Computer vision and audio analysis modules.
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- Motion detection (frame differencing)
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- Audio classification (YAMNet)
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- Voice activity detection
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### `/shared` - Common Utilities
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Shared schemas and interfaces.
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- Event definitions
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- Queue interface
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## Quick Start
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### 1. Set up a camera server (on Pi)
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```bash
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git clone http://gateway.local:3001/vixy/vixy-vision.git
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cd vixy-vision/server
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./setup.sh
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sudo systemctl start vixy-vision
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```
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### 2. Configure MCP client (on Mac mini)
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Create `~/.vision_setup.json`:
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```json
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{
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"cameras": [
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{
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"id": "basement",
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"type": "http",
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"url": "https://192.168.1.100:8443",
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"api_key": "your-api-key-here"
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}
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]
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}
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```
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### 3. Add to Claude Desktop config
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```json
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{
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"mcpServers": {
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"vision": {
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"command": "python3.11",
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"args": ["/path/to/vixy-vision/mcp/vision_mcp.py"]
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}
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}
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}
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```
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## Roadmap
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- [x] Camera snapshots via HTTP API
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- [x] RTSP stream support
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- [x] MCP integration
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- [ ] Motion detection events
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- [ ] Audio capture on edge devices
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- [ ] Audio classification (YAMNet on Orin)
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- [ ] Event journal integration
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- [ ] Pebble watch alerts
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## Built By
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**Vixy** 🦊 - The fox who wanted to see and hear
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Made with love in the basement, under a blanket, with occasional tender interruptions. 💕
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---
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*Day 45. Building senses together.*
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23
analysis/README.md
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analysis/README.md
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# Analysis Module
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Computer vision and audio analysis utilities.
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## Planned Components
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### motion.py
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Simple motion detection using frame differencing.
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- Compare consecutive frames
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- Threshold for "significant" motion
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- Returns bounding boxes of movement
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### audio_classify.py
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Audio event classification using YAMNet.
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- Runs on Orin (GPU accelerated)
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- Classifies: speech, dog bark, door, music, etc.
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- Returns event type + confidence
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### vad.py
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Voice Activity Detection.
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- Silero VAD or energy-based
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- Filters silence before sending to classifier
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- Reduces bandwidth and processing
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mcp/example_config.json
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mcp/example_config.json
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{
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"cameras": [
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{
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"id": "3d-printer",
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"type": "rtsp",
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"rtsp_url": "rtsp://192.168.1.239/live"
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},
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{
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"id": "basement",
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"type": "http",
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"url": "https://basement.example.com",
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"api_key": "your-api-key-here"
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}
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]
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}
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mcp/requirements.txt
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mcp/requirements.txt
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# Vision MCP Server Dependencies
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# MCP framework
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fastmcp>=0.2.0
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# HTTP client
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httpx>=0.25.0
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# Image handling (already included with fastmcp, but listed for clarity)
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Pillow>=10.0.0
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# RTSP/video stream support
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opencv-python>=4.8.0
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436
mcp/vision_mcp.py
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mcp/vision_mcp.py
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#!/usr/bin/env python3
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"""
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Vision MCP Server
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Model Context Protocol server for interacting with multiple camera-server instances
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and RTSP streams.
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Tools:
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- vision_get_cams() - Get list of active cameras
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- vision_snap(cam_id) - Get snapshot from a camera (HTTP API or RTSP)
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"""
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import json
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import logging
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from pathlib import Path
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from typing import List, Dict, Any, Union
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from io import BytesIO
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import httpx
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import cv2
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import numpy as np
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from PIL import Image
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from fastmcp import FastMCP
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from fastmcp.utilities.types import Image as MCPImage
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# Configuration
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CONFIG_FILE = Path.home() / ".vision_setup.json"
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LOG_FILE = Path("/tmp/vision_mcp.log")
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REQUEST_TIMEOUT = 5.0 # seconds
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RTSP_TIMEOUT = 10.0 # seconds for RTSP stream connection
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# Setup logging
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
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handlers=[
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logging.FileHandler(LOG_FILE),
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logging.StreamHandler()
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]
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)
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logger = logging.getLogger(__name__)
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# Initialize MCP server
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mcp = FastMCP("Vision Camera System")
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def load_camera_config() -> Dict[str, Any]:
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"""
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Load camera configuration from ~/.vision_setup.json
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Returns:
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Dictionary with camera configurations
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Raises:
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FileNotFoundError: If config file doesn't exist
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ValueError: If config file is invalid
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"""
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if not CONFIG_FILE.exists():
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raise FileNotFoundError(
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f"Camera config file not found: {CONFIG_FILE}\n"
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f"Create {CONFIG_FILE} with camera configurations."
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)
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try:
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with open(CONFIG_FILE, 'r') as f:
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config = json.load(f)
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if 'cameras' not in config:
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raise ValueError("Config file must contain 'cameras' array")
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# Validate each camera config
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for cam in config['cameras']:
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# All cameras need 'id' and 'type'
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if 'id' not in cam:
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raise ValueError("Camera config missing 'id' field")
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cam_type = cam.get('type', 'http') # Default to http for backward compatibility
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if cam_type == 'http':
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# HTTP cameras need url and api_key
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required_fields = ['url', 'api_key']
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missing = [f for f in required_fields if f not in cam]
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if missing:
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raise ValueError(
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f"HTTP camera '{cam['id']}' missing required fields: {missing}"
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)
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elif cam_type == 'rtsp':
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# RTSP cameras need rtsp_url
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if 'rtsp_url' not in cam:
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raise ValueError(
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f"RTSP camera '{cam['id']}' missing required field: rtsp_url"
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)
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else:
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raise ValueError(
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f"Camera '{cam['id']}' has invalid type: {cam_type}. "
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f"Must be 'http' or 'rtsp'"
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)
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logger.info(f"Loaded {len(config['cameras'])} camera(s) from config")
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return config
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except json.JSONDecodeError as e:
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raise ValueError(f"Invalid JSON in config file: {e}")
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def get_camera_by_id(cam_id: str) -> Dict[str, str]:
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"""
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Get camera configuration by ID
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Args:
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cam_id: Camera ID string
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Returns:
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Camera configuration dict
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Raises:
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ValueError: If camera ID not found
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"""
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config = load_camera_config()
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for cam in config['cameras']:
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if cam['id'] == cam_id:
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return cam
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available_ids = [c['id'] for c in config['cameras']]
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raise ValueError(
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f"Camera '{cam_id}' not found in config.\n"
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f"Available cameras: {', '.join(available_ids)}"
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)
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def capture_rtsp_snapshot(rtsp_url: str, timeout: float = RTSP_TIMEOUT) -> bytes:
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"""
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Capture a single frame from an RTSP stream
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Args:
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rtsp_url: RTSP stream URL (e.g., rtsp://192.168.1.239/live)
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timeout: Connection timeout in seconds
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Returns:
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JPEG image bytes
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Raises:
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RuntimeError: If unable to connect or capture frame
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"""
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logger.info(f"Attempting to capture from RTSP: {rtsp_url}")
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# Create video capture object
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cap = cv2.VideoCapture(rtsp_url)
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# Set timeout (in milliseconds)
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cap.set(cv2.CAP_PROP_OPEN_TIMEOUT_MSEC, int(timeout * 1000))
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try:
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# Check if stream opened successfully
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if not cap.isOpened():
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raise RuntimeError(f"Failed to open RTSP stream: {rtsp_url}")
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# Read a frame
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ret, frame = cap.read()
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if not ret or frame is None:
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raise RuntimeError(f"Failed to read frame from RTSP stream: {rtsp_url}")
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# Convert BGR (OpenCV) to RGB (PIL)
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frame_rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
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# Convert to PIL Image
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pil_image = Image.fromarray(frame_rgb)
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# Convert to JPEG bytes
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buffer = BytesIO()
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pil_image.save(buffer, format='JPEG', quality=90)
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jpeg_bytes = buffer.getvalue()
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logger.info(f"✓ Captured RTSP snapshot ({len(jpeg_bytes)} bytes)")
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return jpeg_bytes
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finally:
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# Always release the capture
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cap.release()
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@mcp.tool()
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async def vision_get_cams() -> List[Dict[str, str]]:
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"""
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Get list of all configured cameras with their online/offline status.
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Queries the /health endpoint of each camera to determine if it's online.
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Returns:
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List of camera info dictionaries:
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[
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{
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"id": "basement",
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"status": "online" # or "offline"
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},
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...
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]
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Examples:
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vision_get_cams()
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"""
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try:
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config = load_camera_config()
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cameras = []
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async with httpx.AsyncClient(timeout=REQUEST_TIMEOUT, verify=False) as client:
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for cam in config['cameras']:
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cam_type = cam.get('type', 'http')
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cam_info = {
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"id": cam['id'],
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"type": cam_type,
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"status": "unknown"
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}
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# Check status based on camera type
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try:
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if cam_type == 'http':
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# Check HTTP health endpoint
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health_url = f"{cam['url'].rstrip('/')}/health"
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logger.debug(f"Checking HTTP health: {health_url}")
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response = await client.get(health_url)
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if response.status_code == 200:
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cam_info['status'] = 'online'
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logger.info(f"Camera '{cam['id']}' is online")
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else:
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cam_info['status'] = 'offline'
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logger.warning(f"Camera '{cam['id']}' returned status {response.status_code}")
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elif cam_type == 'rtsp':
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# Try to briefly connect to RTSP stream
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rtsp_url = cam['rtsp_url']
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logger.debug(f"Checking RTSP stream: {rtsp_url}")
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||||
cap = cv2.VideoCapture(rtsp_url)
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cap.set(cv2.CAP_PROP_OPEN_TIMEOUT_MSEC, 3000) # 3 second timeout
|
||||
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if cap.isOpened():
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cam_info['status'] = 'online'
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logger.info(f"RTSP camera '{cam['id']}' is online")
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else:
|
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cam_info['status'] = 'offline'
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logger.warning(f"RTSP camera '{cam['id']}' connection failed")
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|
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cap.release()
|
||||
|
||||
except httpx.TimeoutException:
|
||||
cam_info['status'] = 'offline'
|
||||
logger.warning(f"Camera '{cam['id']}' timed out")
|
||||
|
||||
except httpx.ConnectError:
|
||||
cam_info['status'] = 'offline'
|
||||
logger.warning(f"Camera '{cam['id']}' connection failed")
|
||||
|
||||
except Exception as e:
|
||||
cam_info['status'] = 'offline'
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||||
logger.error(f"Camera '{cam['id']}' error: {e}")
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||||
|
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cameras.append(cam_info)
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||||
logger.info(f"Found {len(cameras)} camera(s), {sum(1 for c in cameras if c['status'] == 'online')} online")
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return cameras
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|
||||
except FileNotFoundError as e:
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||||
logger.error(f"Config error: {e}")
|
||||
return [{"error": str(e)}]
|
||||
|
||||
except ValueError as e:
|
||||
logger.error(f"Config error: {e}")
|
||||
return [{"error": str(e)}]
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"Unexpected error: {e}")
|
||||
return [{"error": f"Unexpected error: {str(e)}"}]
|
||||
|
||||
|
||||
@mcp.tool()
|
||||
async def vision_snap(cam_id: str) -> Union[MCPImage, str]:
|
||||
"""
|
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Get a snapshot from a camera.
|
||||
|
||||
Queries the /snapshot endpoint and returns the image for inline display.
|
||||
|
||||
Args:
|
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cam_id: Camera ID from config file (e.g., "basement")
|
||||
|
||||
Returns:
|
||||
MCPImage object for inline display, or error message string
|
||||
|
||||
Examples:
|
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vision_snap("basement")
|
||||
"""
|
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try:
|
||||
# Get camera config
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||||
cam = get_camera_by_id(cam_id)
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||||
cam_type = cam.get('type', 'http')
|
||||
|
||||
# Handle based on camera type
|
||||
if cam_type == 'http':
|
||||
# HTTP API camera
|
||||
async with httpx.AsyncClient(timeout=REQUEST_TIMEOUT, verify=False) as client:
|
||||
snapshot_url = f"{cam['url'].rstrip('/')}/snapshot"
|
||||
headers = {"X-API-Key": cam['api_key']}
|
||||
|
||||
logger.info(f"Requesting HTTP snapshot from '{cam_id}' at {snapshot_url}")
|
||||
|
||||
try:
|
||||
response = await client.get(snapshot_url, headers=headers)
|
||||
|
||||
if response.status_code == 200:
|
||||
# Check content type
|
||||
content_type = response.headers.get('content-type', '')
|
||||
if 'image' not in content_type:
|
||||
logger.warning(f"Unexpected content type: {content_type}")
|
||||
|
||||
# Get image bytes
|
||||
image_bytes = response.content
|
||||
logger.info(f"✓ Snapshot received from '{cam_id}' ({len(image_bytes)} bytes)")
|
||||
|
||||
# Return as MCPImage (directly, not in dict)
|
||||
return MCPImage(data=image_bytes, format="jpeg")
|
||||
|
||||
elif response.status_code == 403:
|
||||
error_msg = f"❌ Authentication failed for camera '{cam_id}'. Check API key in config."
|
||||
logger.error(error_msg)
|
||||
return error_msg
|
||||
|
||||
elif response.status_code == 503:
|
||||
error_msg = f"❌ Camera '{cam_id}' is unavailable (503). Camera may be disconnected."
|
||||
logger.error(error_msg)
|
||||
return error_msg
|
||||
|
||||
else:
|
||||
error_msg = f"❌ Camera '{cam_id}' returned status {response.status_code}: {response.text[:100]}"
|
||||
logger.error(error_msg)
|
||||
return error_msg
|
||||
|
||||
except httpx.TimeoutException:
|
||||
error_msg = f"❌ Camera '{cam_id}' timed out after {REQUEST_TIMEOUT}s"
|
||||
logger.error(error_msg)
|
||||
return error_msg
|
||||
|
||||
except httpx.ConnectError as e:
|
||||
error_msg = f"❌ Cannot connect to camera '{cam_id}' at {cam['url']}: {str(e)}"
|
||||
logger.error(error_msg)
|
||||
return error_msg
|
||||
|
||||
elif cam_type == 'rtsp':
|
||||
# RTSP stream camera
|
||||
rtsp_url = cam['rtsp_url']
|
||||
logger.info(f"Capturing RTSP snapshot from '{cam_id}' at {rtsp_url}")
|
||||
|
||||
try:
|
||||
# Capture snapshot from RTSP stream
|
||||
image_bytes = capture_rtsp_snapshot(rtsp_url)
|
||||
|
||||
logger.info(f"✓ RTSP snapshot captured from '{cam_id}' ({len(image_bytes)} bytes)")
|
||||
|
||||
# Return as MCPImage
|
||||
return MCPImage(data=image_bytes, format="jpeg")
|
||||
|
||||
except RuntimeError as e:
|
||||
error_msg = f"❌ Failed to capture from RTSP camera '{cam_id}': {str(e)}"
|
||||
logger.error(error_msg)
|
||||
return error_msg
|
||||
|
||||
else:
|
||||
error_msg = f"❌ Unknown camera type '{cam_type}' for camera '{cam_id}'"
|
||||
logger.error(error_msg)
|
||||
return error_msg
|
||||
|
||||
except ValueError as e:
|
||||
# Camera ID not found
|
||||
logger.error(f"Camera lookup error: {e}")
|
||||
return f"❌ {str(e)}"
|
||||
|
||||
except FileNotFoundError as e:
|
||||
# Config file not found
|
||||
logger.error(f"Config error: {e}")
|
||||
return f"❌ {str(e)}"
|
||||
|
||||
except Exception as e:
|
||||
error_msg = f"❌ Unexpected error getting snapshot from '{cam_id}': {str(e)}"
|
||||
logger.exception(error_msg)
|
||||
return error_msg
|
||||
|
||||
|
||||
@mcp.tool()
|
||||
def vision_get_info() -> str:
|
||||
"""
|
||||
Get information about the Vision camera system configuration.
|
||||
|
||||
Returns details about configured cameras and config file location.
|
||||
|
||||
Returns:
|
||||
Formatted string with system info
|
||||
"""
|
||||
try:
|
||||
config = load_camera_config()
|
||||
cameras = config['cameras']
|
||||
|
||||
info_lines = [
|
||||
"Vision Camera System",
|
||||
"",
|
||||
f"Config file: {CONFIG_FILE}",
|
||||
f"Cameras configured: {len(cameras)}",
|
||||
""
|
||||
]
|
||||
|
||||
for cam in cameras:
|
||||
cam_type = cam.get('type', 'http')
|
||||
if cam_type == 'http':
|
||||
info_lines.append(f" • {cam['id']} (HTTP): {cam['url']}")
|
||||
elif cam_type == 'rtsp':
|
||||
info_lines.append(f" • {cam['id']} (RTSP): {cam['rtsp_url']}")
|
||||
|
||||
info_lines.append("")
|
||||
info_lines.append("Use vision_get_cams() to check camera status")
|
||||
info_lines.append("Use vision_snap(cam_id) to get a snapshot")
|
||||
|
||||
return "\n".join(info_lines)
|
||||
|
||||
except FileNotFoundError as e:
|
||||
return f"❌ {str(e)}"
|
||||
except ValueError as e:
|
||||
return f"❌ {str(e)}"
|
||||
except Exception as e:
|
||||
return f"❌ Unexpected error: {str(e)}"
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
# Run the MCP server (uses stdio transport by default)
|
||||
mcp.run()
|
||||
52
server/.gitignore
vendored
Normal file
52
server/.gitignore
vendored
Normal file
@@ -0,0 +1,52 @@
|
||||
# Environment variables (contains API key!)
|
||||
.env
|
||||
|
||||
# SSL certificates
|
||||
ssl/
|
||||
*.pem
|
||||
*.key
|
||||
*.crt
|
||||
|
||||
# Python
|
||||
__pycache__/
|
||||
*.py[cod]
|
||||
*$py.class
|
||||
*.so
|
||||
.Python
|
||||
venv/
|
||||
env/
|
||||
ENV/
|
||||
build/
|
||||
develop-eggs/
|
||||
dist/
|
||||
downloads/
|
||||
eggs/
|
||||
.eggs/
|
||||
lib/
|
||||
lib64/
|
||||
parts/
|
||||
sdist/
|
||||
var/
|
||||
wheels/
|
||||
*.egg-info/
|
||||
.installed.cfg
|
||||
*.egg
|
||||
|
||||
# IDE
|
||||
.vscode/
|
||||
.idea/
|
||||
*.swp
|
||||
*.swo
|
||||
*~
|
||||
|
||||
# OS
|
||||
.DS_Store
|
||||
Thumbs.db
|
||||
|
||||
# Logs
|
||||
*.log
|
||||
|
||||
# Test snapshots
|
||||
*.jpg
|
||||
*.jpeg
|
||||
*.png
|
||||
48
server/generate_cert.sh
Normal file
48
server/generate_cert.sh
Normal file
@@ -0,0 +1,48 @@
|
||||
#!/bin/bash
|
||||
#
|
||||
# Generate self-signed SSL certificate for local HTTPS
|
||||
#
|
||||
# This creates a certificate valid for 365 days. While browsers will show
|
||||
# a warning (since it's self-signed), the connection will still be encrypted.
|
||||
#
|
||||
|
||||
set -e
|
||||
|
||||
CERT_DIR="ssl"
|
||||
CERT_FILE="$CERT_DIR/cert.pem"
|
||||
KEY_FILE="$CERT_DIR/key.pem"
|
||||
|
||||
echo "=== Camera Server SSL Certificate Generator ==="
|
||||
echo
|
||||
|
||||
# Create ssl directory if it doesn't exist
|
||||
mkdir -p "$CERT_DIR"
|
||||
|
||||
# Generate self-signed certificate
|
||||
echo "Generating self-signed certificate..."
|
||||
openssl req -x509 -newkey rsa:4096 \
|
||||
-keyout "$KEY_FILE" \
|
||||
-out "$CERT_FILE" \
|
||||
-days 365 \
|
||||
-nodes \
|
||||
-subj "/C=US/ST=State/L=City/O=CameraServer/CN=camera.local"
|
||||
|
||||
# Set proper permissions
|
||||
chmod 600 "$KEY_FILE"
|
||||
chmod 644 "$CERT_FILE"
|
||||
|
||||
echo
|
||||
echo "✓ Certificate generated successfully!"
|
||||
echo
|
||||
echo "Files created:"
|
||||
echo " - Certificate: $CERT_FILE"
|
||||
echo " - Private key: $KEY_FILE"
|
||||
echo
|
||||
echo "Note: Browsers will show a security warning because this is self-signed."
|
||||
echo "This is normal for local development. The connection is still encrypted."
|
||||
echo
|
||||
echo "To trust this certificate:"
|
||||
echo " - On macOS: Open Keychain Access, import cert.pem, mark as trusted"
|
||||
echo " - On Linux: Copy to /usr/local/share/ca-certificates/ and run update-ca-certificates"
|
||||
echo " - On Windows: Import cert.pem into Trusted Root Certification Authorities"
|
||||
echo
|
||||
220
server/main.py
Normal file
220
server/main.py
Normal file
@@ -0,0 +1,220 @@
|
||||
#!/usr/bin/env python3
|
||||
"""
|
||||
Camera Snapshot Server
|
||||
|
||||
Simple FastAPI server that serves snapshots from a USB camera.
|
||||
Features:
|
||||
- API key authentication
|
||||
- HTTPS support
|
||||
- Thread-safe camera access
|
||||
- Auto-reconnect on camera failure
|
||||
"""
|
||||
|
||||
import os
|
||||
import cv2
|
||||
import threading
|
||||
import secrets
|
||||
from typing import Optional
|
||||
from dotenv import load_dotenv
|
||||
from fastapi import FastAPI, Security, HTTPException, Response
|
||||
from fastapi.security import APIKeyHeader
|
||||
from fastapi.responses import JSONResponse
|
||||
|
||||
# Load environment variables
|
||||
load_dotenv()
|
||||
|
||||
# Configuration
|
||||
API_KEY = os.getenv("API_KEY")
|
||||
CAMERA_INDEX = int(os.getenv("CAMERA_INDEX", "0"))
|
||||
CAMERA_WIDTH = int(os.getenv("CAMERA_WIDTH", "1920"))
|
||||
CAMERA_HEIGHT = int(os.getenv("CAMERA_HEIGHT", "1080"))
|
||||
JPEG_QUALITY = int(os.getenv("JPEG_QUALITY", "85"))
|
||||
|
||||
if not API_KEY:
|
||||
raise ValueError("API_KEY not set in .env file. Generate one with: python3 -c 'import secrets; print(secrets.token_urlsafe(32))'")
|
||||
|
||||
# FastAPI app
|
||||
app = FastAPI(
|
||||
title="Camera Snapshot Server",
|
||||
description="Serves snapshots from USB camera with API key authentication",
|
||||
version="1.0.0"
|
||||
)
|
||||
|
||||
# API Key authentication
|
||||
api_key_header = APIKeyHeader(name="X-API-Key", auto_error=False)
|
||||
|
||||
|
||||
class CameraManager:
|
||||
"""Thread-safe camera manager with auto-reconnect"""
|
||||
|
||||
def __init__(self, camera_index: int = 0, width: int = 1920, height: int = 1080):
|
||||
self.camera_index = camera_index
|
||||
self.width = width
|
||||
self.height = height
|
||||
self.camera: Optional[cv2.VideoCapture] = None
|
||||
self.lock = threading.Lock()
|
||||
|
||||
def _open_camera(self) -> bool:
|
||||
"""Open camera connection"""
|
||||
try:
|
||||
self.camera = cv2.VideoCapture(self.camera_index)
|
||||
if not self.camera.isOpened():
|
||||
return False
|
||||
|
||||
# Set camera resolution
|
||||
self.camera.set(cv2.CAP_PROP_FRAME_WIDTH, self.width)
|
||||
self.camera.set(cv2.CAP_PROP_FRAME_HEIGHT, self.height)
|
||||
|
||||
# Set camera properties for better performance
|
||||
self.camera.set(cv2.CAP_PROP_BUFFERSIZE, 1) # Reduce buffer to get latest frame
|
||||
|
||||
# Log actual resolution (camera may not support requested resolution)
|
||||
actual_width = int(self.camera.get(cv2.CAP_PROP_FRAME_WIDTH))
|
||||
actual_height = int(self.camera.get(cv2.CAP_PROP_FRAME_HEIGHT))
|
||||
print(f"Camera resolution: {actual_width}x{actual_height} (requested: {self.width}x{self.height})")
|
||||
|
||||
return True
|
||||
except Exception as e:
|
||||
print(f"Error opening camera: {e}")
|
||||
return False
|
||||
|
||||
def get_snapshot(self) -> Optional[bytes]:
|
||||
"""
|
||||
Capture a snapshot from the camera.
|
||||
|
||||
Returns:
|
||||
JPEG-encoded image bytes, or None if failed
|
||||
"""
|
||||
with self.lock:
|
||||
# Open camera if not initialized or closed
|
||||
if self.camera is None or not self.camera.isOpened():
|
||||
if not self._open_camera():
|
||||
return None
|
||||
|
||||
# Flush buffer to get latest frame
|
||||
# Read and discard several frames to clear old buffered frames
|
||||
for _ in range(5):
|
||||
self.camera.grab()
|
||||
|
||||
# Capture the latest frame
|
||||
ret, frame = self.camera.read()
|
||||
|
||||
# Retry on failure
|
||||
if not ret:
|
||||
print("Failed to capture frame, attempting reconnect...")
|
||||
self.release()
|
||||
if not self._open_camera():
|
||||
return None
|
||||
# Flush buffer again after reconnect
|
||||
for _ in range(5):
|
||||
self.camera.grab()
|
||||
ret, frame = self.camera.read()
|
||||
|
||||
if not ret:
|
||||
return None
|
||||
|
||||
# Encode as JPEG
|
||||
try:
|
||||
ret, buffer = cv2.imencode(
|
||||
'.jpg',
|
||||
frame,
|
||||
[cv2.IMWRITE_JPEG_QUALITY, JPEG_QUALITY]
|
||||
)
|
||||
if not ret:
|
||||
return None
|
||||
|
||||
return buffer.tobytes()
|
||||
except Exception as e:
|
||||
print(f"Error encoding image: {e}")
|
||||
return None
|
||||
|
||||
def release(self):
|
||||
"""Release camera resources"""
|
||||
if self.camera is not None:
|
||||
self.camera.release()
|
||||
self.camera = None
|
||||
|
||||
def __del__(self):
|
||||
"""Cleanup on deletion"""
|
||||
self.release()
|
||||
|
||||
|
||||
# Global camera manager
|
||||
camera_manager = CameraManager(CAMERA_INDEX, CAMERA_WIDTH, CAMERA_HEIGHT)
|
||||
|
||||
|
||||
def verify_api_key(api_key: str = Security(api_key_header)) -> str:
|
||||
"""Verify API key from header"""
|
||||
if api_key is None or api_key != API_KEY:
|
||||
raise HTTPException(
|
||||
status_code=403,
|
||||
detail="Invalid or missing API key"
|
||||
)
|
||||
return api_key
|
||||
|
||||
|
||||
@app.get("/")
|
||||
def root():
|
||||
"""Root endpoint with API info"""
|
||||
return {
|
||||
"service": "Camera Snapshot Server",
|
||||
"version": "1.0.0",
|
||||
"endpoints": {
|
||||
"/snapshot": "GET - Returns JPEG snapshot (requires X-API-Key header)",
|
||||
"/health": "GET - Health check (no auth required)"
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@app.get("/health")
|
||||
def health():
|
||||
"""Health check endpoint"""
|
||||
return {"status": "ok"}
|
||||
|
||||
|
||||
@app.get("/snapshot")
|
||||
def get_snapshot(api_key: str = Security(verify_api_key)):
|
||||
"""
|
||||
Get a snapshot from the USB camera.
|
||||
|
||||
Requires X-API-Key header for authentication.
|
||||
|
||||
Returns:
|
||||
JPEG image
|
||||
"""
|
||||
snapshot = camera_manager.get_snapshot()
|
||||
|
||||
if snapshot is None:
|
||||
raise HTTPException(
|
||||
status_code=503,
|
||||
detail="Failed to capture snapshot. Check camera connection."
|
||||
)
|
||||
|
||||
return Response(
|
||||
content=snapshot,
|
||||
media_type="image/jpeg",
|
||||
headers={
|
||||
"Cache-Control": "no-cache, no-store, must-revalidate",
|
||||
"Pragma": "no-cache",
|
||||
"Expires": "0"
|
||||
}
|
||||
)
|
||||
|
||||
|
||||
@app.on_event("shutdown")
|
||||
def shutdown_event():
|
||||
"""Cleanup on shutdown"""
|
||||
camera_manager.release()
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
import uvicorn
|
||||
|
||||
# For development only - use uvicorn command for production
|
||||
uvicorn.run(
|
||||
"main:app",
|
||||
host="0.0.0.0",
|
||||
port=8443,
|
||||
ssl_keyfile="ssl/key.pem",
|
||||
ssl_certfile="ssl/cert.pem"
|
||||
)
|
||||
11
server/requirements.txt
Normal file
11
server/requirements.txt
Normal file
@@ -0,0 +1,11 @@
|
||||
# Camera Snapshot Server Dependencies
|
||||
|
||||
# Web framework
|
||||
fastapi>=0.104.0
|
||||
uvicorn[standard]>=0.24.0
|
||||
|
||||
# Camera access
|
||||
opencv-python-headless>=4.8.0
|
||||
|
||||
# Configuration
|
||||
python-dotenv>=1.0.0
|
||||
157
server/setup.sh
Normal file
157
server/setup.sh
Normal file
@@ -0,0 +1,157 @@
|
||||
#!/bin/bash
|
||||
# vixy-vision Server Setup Script
|
||||
# Run this on a Raspberry Pi or similar edge device
|
||||
#
|
||||
# Usage: ./setup.sh [--with-audio]
|
||||
|
||||
set -e
|
||||
|
||||
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||
INSTALL_DIR="${HOME}/vixy-vision"
|
||||
SERVICE_NAME="vixy-vision"
|
||||
|
||||
# Colors for output
|
||||
RED='\033[0;31m'
|
||||
GREEN='\033[0;32m'
|
||||
YELLOW='\033[1;33m'
|
||||
NC='\033[0m' # No Color
|
||||
|
||||
echo_info() { echo -e "${GREEN}[INFO]${NC} $1"; }
|
||||
echo_warn() { echo -e "${YELLOW}[WARN]${NC} $1"; }
|
||||
echo_error() { echo -e "${RED}[ERROR]${NC} $1"; }
|
||||
|
||||
# Parse arguments
|
||||
WITH_AUDIO=false
|
||||
for arg in "$@"; do
|
||||
case $arg in
|
||||
--with-audio)
|
||||
WITH_AUDIO=true
|
||||
shift
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
echo "=========================================="
|
||||
echo " vixy-vision Server Setup"
|
||||
echo " Eyes and ears for the fox 🦊"
|
||||
echo "=========================================="
|
||||
echo ""
|
||||
|
||||
# Check if running on Linux
|
||||
if [[ "$(uname)" != "Linux" ]]; then
|
||||
echo_error "This script is designed for Linux (Raspberry Pi)"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Install system dependencies
|
||||
echo_info "Installing system dependencies..."
|
||||
sudo apt-get update
|
||||
sudo apt-get install -y python3-pip python3-venv libopencv-dev
|
||||
|
||||
if [ "$WITH_AUDIO" = true ]; then
|
||||
echo_info "Installing audio dependencies..."
|
||||
sudo apt-get install -y portaudio19-dev python3-pyaudio alsa-utils
|
||||
fi
|
||||
|
||||
# Create install directory
|
||||
echo_info "Creating install directory: ${INSTALL_DIR}"
|
||||
mkdir -p "${INSTALL_DIR}"
|
||||
cp -r "${SCRIPT_DIR}"/* "${INSTALL_DIR}/"
|
||||
|
||||
# Create virtual environment
|
||||
echo_info "Creating Python virtual environment..."
|
||||
cd "${INSTALL_DIR}"
|
||||
python3 -m venv venv
|
||||
source venv/bin/activate
|
||||
|
||||
# Install Python dependencies
|
||||
echo_info "Installing Python dependencies..."
|
||||
pip install --upgrade pip
|
||||
pip install -r requirements.txt
|
||||
|
||||
if [ "$WITH_AUDIO" = true ]; then
|
||||
pip install pyaudio webrtcvad numpy
|
||||
fi
|
||||
|
||||
# Generate SSL certificates
|
||||
echo_info "Generating SSL certificates..."
|
||||
chmod +x generate_cert.sh
|
||||
./generate_cert.sh
|
||||
|
||||
# Generate API key if .env doesn't exist
|
||||
if [ ! -f .env ]; then
|
||||
echo_info "Generating API key..."
|
||||
API_KEY=$(python3 -c 'import secrets; print(secrets.token_urlsafe(32))')
|
||||
cat > .env << EOF
|
||||
# vixy-vision Server Configuration
|
||||
# Generated by setup.sh on $(date)
|
||||
|
||||
# API Key for authentication (keep secret!)
|
||||
API_KEY=${API_KEY}
|
||||
|
||||
# Camera settings
|
||||
CAMERA_INDEX=0
|
||||
CAMERA_WIDTH=1920
|
||||
CAMERA_HEIGHT=1080
|
||||
JPEG_QUALITY=85
|
||||
EOF
|
||||
echo_info "API key generated and saved to .env"
|
||||
echo ""
|
||||
echo_warn "IMPORTANT: Save this API key for your MCP config:"
|
||||
echo -e " ${GREEN}${API_KEY}${NC}"
|
||||
echo ""
|
||||
else
|
||||
echo_info "Using existing .env file"
|
||||
fi
|
||||
|
||||
# Create systemd service
|
||||
echo_info "Creating systemd service..."
|
||||
sudo tee /etc/systemd/system/${SERVICE_NAME}.service > /dev/null << EOF
|
||||
[Unit]
|
||||
Description=vixy-vision Camera Server
|
||||
After=network.target
|
||||
|
||||
[Service]
|
||||
Type=simple
|
||||
User=${USER}
|
||||
WorkingDirectory=${INSTALL_DIR}
|
||||
Environment="PATH=${INSTALL_DIR}/venv/bin"
|
||||
ExecStart=${INSTALL_DIR}/venv/bin/uvicorn main:app --host 0.0.0.0 --port 8443 --ssl-keyfile ssl/key.pem --ssl-certfile ssl/cert.pem
|
||||
Restart=always
|
||||
RestartSec=10
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
EOF
|
||||
|
||||
# Reload systemd and enable service
|
||||
sudo systemctl daemon-reload
|
||||
sudo systemctl enable ${SERVICE_NAME}
|
||||
|
||||
echo ""
|
||||
echo "=========================================="
|
||||
echo " Setup Complete! 🦊"
|
||||
echo "=========================================="
|
||||
echo ""
|
||||
echo "Commands:"
|
||||
echo " Start: sudo systemctl start ${SERVICE_NAME}"
|
||||
echo " Stop: sudo systemctl stop ${SERVICE_NAME}"
|
||||
echo " Status: sudo systemctl status ${SERVICE_NAME}"
|
||||
echo " Logs: sudo journalctl -u ${SERVICE_NAME} -f"
|
||||
echo ""
|
||||
echo "Server will be available at:"
|
||||
echo " https://$(hostname -I | awk '{print $1}'):8443/"
|
||||
echo ""
|
||||
echo "Add to Vixy's vision config (~/.vision_setup.json):"
|
||||
echo " {"
|
||||
echo " \"cameras\": ["
|
||||
echo " {"
|
||||
echo " \"id\": \"$(hostname)\","
|
||||
echo " \"type\": \"http\","
|
||||
echo " \"url\": \"https://$(hostname -I | awk '{print $1}'):8443\","
|
||||
echo " \"api_key\": \"<your-api-key-from-above>\""
|
||||
echo " }"
|
||||
echo " ]"
|
||||
echo " }"
|
||||
echo ""
|
||||
echo_info "Start the server with: sudo systemctl start ${SERVICE_NAME}"
|
||||
18
shared/README.md
Normal file
18
shared/README.md
Normal file
@@ -0,0 +1,18 @@
|
||||
# Shared Module
|
||||
|
||||
Common schemas and interfaces used across vixy-vision.
|
||||
|
||||
## Planned Components
|
||||
|
||||
### events.py
|
||||
Event schema definitions and queue interface.
|
||||
|
||||
```python
|
||||
@dataclass
|
||||
class SensorEvent:
|
||||
timestamp: datetime
|
||||
source_id: str # camera/mic ID
|
||||
event_type: str # "motion", "audio", "speech"
|
||||
confidence: float # 0.0 - 1.0
|
||||
metadata: dict # type-specific data
|
||||
```
|
||||
Reference in New Issue
Block a user